baber/WOPTO huggingface dataset:
Patent GB-1370618-A (GB)
Title: Rolling mills
IPC: B21B31/04
Filed: 1970-12-17
Abstract: 1370618 Rolling mills BRITISH IRON & STEEL RESEARCH ASSOCIATION 16 Dec 1971 [17 Dec 1970] 59985/70 Heading B3M A roll stand for rolling rods, bars or sections includes a pair of rolls (one at least of which is grooved) driven by a single driving motor 6 (Fig. 1), the motor being coupled to one roll, and the rolls being pressed together to transmit the drive frictionally from the driven to the undriven roll. The rolls may be pressed together by hydraulic units positioned between the lower chocks 8 and the housings 9.  In a further embodiment (Fig. 3), the rolls are urged together by tie-rods 25, and the roll gap is adjusted by wedges 30, 31 connected together by adjusting screws 25. The co-operating surfaces of the wedges and chock may be curved to allow flexure of the rolls under load, and may be coated with an anti-friction lining of PTFE. The tie-rods exert a prestressing force of more than twice the rolling load. Belleville washers 27 allow the rolls to move apart under an overload. The work rolls may be crowned, and back-up rolls may be used.
Patent GB-1259717-A (GB)
Title: Improvements in and relating to the processing of natural rubber
Inventor: CHONG CHEW KAM
IPC: C08K3/16
Filed: 1969-12-12
Abstract: 1,259,717. Processing natural rubber. CHEW KAM CHONG. 23 June, 1970 [12 Dec., 1969], No.60758/69. Heading C3E. A method of reducing the viscosity of natural rubber and stabilizing the viscosity at its reduced level comprises compounding natural rubber having a moisture content not exceeding 1À5% by weight with hydroxylamine hydrochloride by dry milling, crumbling or pelletizing the compounded rubber, washing the crumbs or pellets of compounded rubber with cool water and drying the washed crumbs or pellets. The wet rubber is preferably dried to a moisture content in the range 0À03 to 1À5% by weight. The amount of hydroxylamine hydrochloride used may be in the range 0À05-0À1%, preferably 0À075-0À1%, by weight based on the weight of rubber to be treated. The hydroxylamine hydrochloride may be compounded with a limited quantity of rubber to form a masterbatch which is subsequently dry milled with the bulk of the rubber to be treated. The dry milling is preferably carried out at a temperature of about 65‹ C. The crumbs or pellets so obtained are of # inch dimensions. The waterwashing step may be carried out during crumbling or pelletizing whilst the drying of the washed crumbs or pellets may be carried out at 100‹ C. for 20 minutes.
Patent GB-1208180-A (GB)
Title: Apparatus for feeding and attaching labels
Inventor: KAPLAN IRVING
IPC: B65C11/02
Filed: 1968-12-27
Abstract: 1,208,180. Labelling apparatus. LABELMATIC Inc. 27 Dec., 1968, No. 61515/68. Heading B8F. A hand dispenser for detaching labels 5 from a tape 4 and applying them to an article, has a supply roll 3 whence the tape is led over a plate 33 to a stripper stud 9, the detached labels passing under a roller 11 by which they may be pressed on to an article, and the tape passing between a feed roll 15 having a soft friction covering and a pressure roll 16. The pressure roll 16 is knurled sufficiently to cut into the tape to prevent slip. The feed roll 15 is driven by an oscillatable trigger 21 connected to the roll by a one-way clutch. The stroke of the trigger is limited by abutment against a screw (not shown) which is adjustable in accordance with the length of the labels. The correct adjustment is checked visually by ensuring that an indicator pin (not shown) registers with a coloured reference line provided on each label. The labels are printed by a printing head 38 which is pivoted to the dispenser casing at 40. A cam 43 and inking roller 37 are carried by the trigger, and as they are pivoted anticlockwise by finger pressure on the trigger the head is raised by the cam and the type inked. When the trigger is released it is spring-urged clockwise, the inking roller again inking the type, and finally a spring 41 moves the head into contact with a label to print it. In a simplified dispenser for pre-printed labels the printing head is omitted.
Patent GB-1291278-A (GB)
Title: Prefabricated reinforced concrete constructional element with sheet reinforcement
Inventor: BERNOLD JEAN P
IPC: E04C2/06
Filed: 1969-12-22
Abstract: 1291278 Sheet reinforced concrete building or tunnel lining element J P BERNOLD and H W PFEIFFER 22 Dec 1969 [24 Dec 1968] 62203/69 Headings E1F and E1W A prefabricated reinforced concrete building element has corrugated metal plate reinforcements 2 embedded in the concrete near one face of the element. Alternating corrugations 2a have slots cut across their peaks and alternate regions 2b between the slots reversed in curvature. At least one longitudinal corrugation adjacent the edge of the element is projecting and not completely covered by the concrete. Two adjacent elements are joined in a tunnel lining or wall by the welding of free ends 8d of a plastics sheet 8 which surrounds each element on all sides except for one internal major face. A narrow section 10 with similar metal corrugations is then placed on the exposed edges of the metal sheets to interlock therewith and tie bars are inserted under the bridge like portions to lock the adjacent elements together. The joint is then grouted. The plastics sheet 8 may be provided with integral barbs 16 to key it with the concrete of the element and with semicircular section beads 13 on its exterior convex surface to bear on lances 14 inserted between the rock face and the element in a tunnel to facilitate insertion of the element in friable rock.
Patent GB-1299199-A (GB)
Title: Method and apparatus for manufacturing synthetic resin tube provided with heat-shrinking property
Inventor: TAKAGI HARUO
IPC: B29C61/08
Filed: 1969-12-29
Abstract: 1299199 Heat-shrinkable tubing SAKAI KASEI KOGYO KK 29 Dec 1969 63142/69 Heading B5A Heat-shrinkable thermoplastic synthetic resin tubing is produced by continuously heating tubing, expanding it between an upper and a lower pair of nipper rolls by internal air pressure introduced before nipping by the rolls, cooling it and winding it on a winding cylinder. As shown in Fig. 1, tubing P formed by extrusion and wound on cylinder B is drawn off through heating bath 17 of hot water and rolls 2, 2<SP>1</SP>, held together by weight 4<SP>1</SP>. It is further heated by water-heated annular chamber 15 and water-cooled annular chamber 16, while being expanded by air applied before nipping from cylinder 22 via pipe 24 to the tube end (as in Fig. 2, not shown). It is then passed through upper rolls, 3, 3<SP>1</SP>, roll 3 being driven, held together by screw 9, and vertically reciprocable on platform 6 by rack 11 and pinion 12. The flattened, expanded tubing P<SP>1</SP> is then wound on take-up roll 20.
Patent GB-2001059-A (GB)
Title: Pharmaceutical derivatives of amines and amino acids
IPC: A61K31/195
Filed: 1978-06-27
Abstract: The compounds have the formula  RaHN-A-CH=CH-CR1R2 -NHRb wherein A is -CH2-,-(CH2)2- or -CH(CH3)-; R1 is -CH=CH2 or -C=CH; R2 is hydrogen or COR wherein R is hydroxy, alkoxy or 1 to 8 carbon atoms, -NR4R5 wherein R4 and R5 are the same or different and are each hydrogen or alkyl of 1 to 4 carbon atoms, or -NH- CHR6-COOH wherein R6 is hydrogen, alkyl of 1 to 4 carbon atoms, benzyl or p-hydroxybenzyl, Ra and Rb are the same or different and are each hydrogen, HN=CNH2-, (C1-4alkyl)carbonyl, (C1-4alkoxy)carbonyl or -CO-CHNH2- R7 wherein R7 is hydrogen, alkyl of 1 to 4 carbon atoms, benzyl or p-hydroxybenzyl; with the provisos that Rb is not HN=CNH2-; that when R2 is hydrogen, R1 is -C=CH; that when A is -CH(CH3)-, R2 is hydrogen; and that when Ra is HN=CNH2, A is methylene.
Patent GB-2026099-A (GB)
Title: Steam turbines
IPC: F01D25/26
Filed: 1978-07-20
Abstract: A steam turbine high pressure casing comprises outer and inner shells 4, 2, respectively, between which is disposed an intermediate shell 3 welded to inner shell 2 to increase casing stiffness. The shells 2, 3 each support some of the diaphragms of the H.P. stages and provide a gap 22 through which H.P. steam is bled to flow via ha chamber 23 to glands 18, 19. Intermediate shell 3 also supports the first stage stator blades 21 of the intermediate pressure turbine. <IMAGE>
Patent GB-2010169-A (GB)
Title: Method of making molded article of synthetic resin, article molded thereby and insert member for making same
IPC: B29C45/00
Filed: 1978-08-07
Abstract: A molded article (2) of synthetic resin is made by injection molding. A three dimensional pattern or letter (1a) is embossed on the surface of the article at the same time as the article is made by use of a female mold (3) engraved with the desired pattern or letter. An insert member (1) is positioned on the pattern or letter engraved on the female mold (3), and a male mold (4) is positioned over the female mold (3) to form a cavity. A synthetic resin is injected into the cavity through a sprue (6), whereby the insert member (1) is deformed under the injection moulding pressure to form the pattern or letter (1a) on the article (2). The insert member (1) is a laminate formed of a flexible metal layer which is deformable under the injection molding pressure, and a layer of material which melts under the injection molding temperature. <IMAGE>
Patent GB-2027354-A (GB)
Title: Improvements in or relating to spray guns
IPC: B01F5/06
Filed: 1978-08-07
Abstract: A spray gun for mixing and spraying two liquids comprises a barrel having two mixing chambers 8, 12 interconnected via a conduit 11, to one of which chambers the two liquids are delivered and from the other of which the mixed liquids are sprayed via a venturi-like outlet 13 orifice. <IMAGE>
Patent GB-2163296-A (GB)
Title: Reducing radar reflections
Inventor: HUNTER IAN
IPC: H01Q15/14
Filed: 1978-08-19
Abstract: To reduce radar reflections from a body its wall is a quarter- wavelength-thick insulating layer 6 (GRP) between metallic layers 7, 8, the outer layer being partially transmissive. <IMAGE>
Patent GB-2006243-A (GB)
Title: Improvements in or relating to compounds
IPC: C08B31/00
Filed: 1978-09-20
Abstract: The invention relates to compounds and their preparation and in particular to compounds which are complexes and their preparation. A process for the preparation of a complex of an element in solution, said complex including the element and an organic complexing agent, comprises treating a gel precipitate containing the element and the organic complexing agent to redisperse the gel precipitate into solution. The process is applicable to the preparation of complexes of dextran, polyvinylalcohol, dextrin, starch, dextrose or sorbitol with metallic elements e.g. iron. In particular iron dextran may be produced by treating a gel precipitate containing iron and dextran within an acid such as citric, ascorbic, tartaric, lactic, gluconic or hydrochloric acid.
Patent GB-2032490-A (GB)
Title: Anchoring Whipstocks in Well Bores
IPC: E21B23/01
Filed: 1978-10-27
Abstract: An anchor 10 is lowered in a well bore to a desired location and turned, if necessary, to point a first directional device thereon in a selected direction, after which the anchor is secured by slips 27, 39 and packing 35 against all movement. A whipstock 15, anchor means 105 and mandrel and secured together so that a second directional device on the mandrel is aligned with the whipstock. The whipstock, anchor means and mandrel combination is then lowered in the well bore, the directional devices engaging one another to turn said combination to point the whipstock 15 in the same direction as the first directional device on the anchor 10. The anchor means is coupled to the anchor by a ratchet- like threaded latch without disturbing the selected direction in which the whipstock is pointing. Finally, a cutting tool 150 is deflected by the whipstock to cut a window W in well casing 13 and/or to sidetrack the well bore. <IMAGE>
Patent GB-2013369-A (GB)
Title: Hydraulic servo motor
IPC: F15B9/08
Filed: 1978-12-19
Abstract: A hydraulic servo-motor has an adjusting piston (10) coupled through a P-member spring (14) with a governor slide valve (21) for the adjusting piston (10). A return chamber (27) is formed between the slide valve (21) and a return piston (26). The return piston is supported by a restoring spring (28) disposed between the adjusting piston (10) and the spring (28). So that the P-region of the motor may be varied, an adjustable throttle (32) is provided in a line (30) connecting the return chamber (27) with a chamber (17) of an overflow valve (16) which determines fluid pressure downstream of a fixed constriction (31) in accordance with the force exerted by the P-member spring (14) on a valve body (15) of the overflow valve (16).   <IMAGE>
Patent GB-2015276-A (GB)
Title: Shutdown circuit for a switching power supply
IPC: H02M3/28
Filed: 1979-01-29
Abstract: In a regulated power supply in which the value of the D.C. output voltage B + is fed back to control the duty cycle of a pulse train controlling a switching circuit 24, a protective circuit 52-58 inhibits operation of the supply if the duty cycle increases to a value indicative of failure of the supply to produce a minimum desired output voltage. Operation of the supply is inhibited for a predetermined shutdown interval (54) following which the protective circuit is deactivated for a period (58) to allow the supply to attempt to establish its desired output. The power supply includes a master oscillator (20) and the protective circuitry (50) inhibits operation of the supply when the D.C. output from the oscillator (20) falls below a preset limit. <IMAGE>
Patent GB-2056293-A (GB)
Title: Method and apparatus for making composition friction materials
IPC: F16D69/02
Filed: 1979-03-30
Abstract: Apparatus for the preparation of composition friction materials for railway vehicle brake shoes comprises a mixer 10 having a cylindrical mixing- chamber 14 with a heating jacket 12, the chamber being mounted with its axis horizontal and is provided with plough like stirrers 16 rotatable about said axis and rotary chopper means 22 rotatable about axis at right angles to the stirrers 16. The container is sealable to facilitate its evaluation by means 26 and the jacket is heated at a given stage in the preparation process. A filter 28 and conventional condensing means 30 are provided in connection to the chamber and which are connected to a solvent reservoir to collect the residue solvent produced in the process. <IMAGE>
Patent GB-2047130-A (GB)
Title: Method of assembling stator core of electric machine inside the housing thereof
IPC: H02K1/18
Filed: 1979-04-24
Abstract: A method of assembling a stator core 1 of an electric machine inside the housing 2 thereof comprises securing of resilient coupling ribs 3 with their springing portions 6 to the housing, the springing portions of the ribs being previously urged against core supporting portions 5 of the ribs up to an elastic deformation state by means of detachable clamping members (bolts 7 in holes 8) (Figures 2,3), assembling of core segments on the core supporting portions 5 of the resilient coupling ribs 3, compressing of the core segments, securing them under compression to the ribs, and removing of the detachable clamping members when the core is secured to the resilient coupling ribs. The resilience of ribs 3 is provided by slots 4. <IMAGE>
Patent GB-2021815-A (GB)
Title: Automatic control of burners
IPC: F23N5/18
Filed: 1979-05-22
Abstract: An automatic burner control includes means whereby the combustion conditions existing at a burner are initially governed by pre-determined conditions from data stored in a memory device which conditions can be maintained or improved during the operation of the burner by updating the stored data. Each burner has valve means 2, 3 for the control of flow of fuel and of air and has a variator 6, 7 associated with each valve for setting its position. A memory device 13 stores data pertaining to the characteristics of the control and a computing device, microprocessor 10, controls the variators to set the positions of the valves in accordance with the stored data. The position of the valves and a parameter of combustion are sensed, by potentiometers 8, 9 and sensor 16, and used to continuously up-date the data in the memory device so that the computing means can optimise the performance of the control on the basis of this fed-back information. <IMAGE>
Patent GB-2025490-A (GB)
Title: Shock-absorbing tool for a well drilling string
IPC: E21B17/07
Filed: 1979-07-13
Abstract: A shock-absorbing tool (10) for a well drilling string comprises a tubular barrel (12) and a tubular mandrel (14) telescopically received therein, the barrel and mandrel being arranged for relative longitudinal movement but being fixed in rotation and defining therebetween an annular chamber (16) including resilient shock-absorbing means (82). Means associated with the barrel (12) and mandrel (14) engage and compress the shock-absorbing means (82) upon relative longitudinal movement of the barrel and mandrel in each direction so that the tool functions to dampen longitudinal movement of the mandrel (14) and barrel (12) with respect to one another regardless of the direction of longitudinal movement. In another embodiment, the shock absorbing means may comprise two portions (106, 108, Fig. 4). <IMAGE>
Patent GB-2027963-A (GB)
Title: Automatic mark recognition
IPC: G06K7/016
Filed: 1979-08-01
Abstract: Information is encoded manually on a document (2) by making marks (M) at appropriate positions of a marking matrix. The document has a row (TZ) of timing marks (TM) which are recognised (in preprocessor 41) in order to ascertain the column positions. When the document is read by being carried past a scanning unit (10, 11), level shifts and/or oblique positioning thereof can arise due to cutting and printing tolerances or misconveyance. To compensate such possible sources of error, the preprocessor (41) also recognises the vertical position of the timing row (TZ) to ascertain the row positioning relative to the scanning unit. In addition, a code column (CS) with code marks (CM1) is provided on the document and their position is analysed to determine the magnitude and direction of the oblique positioning (if any) of the document. Image data derived from marks (M) is stored in a store and the information derived from the timing row and code column is used to enable the data relative to each mark to be read out correctly by reading data from appropriate columns of the store which are selected in accordance with the amount of obliqueness detected. <IMAGE>
Patent GB-2060744-A (GB)
Title: Insulating roller blind arrangement
IPC: E06B9/17
Filed: 1979-10-12
Abstract: A roller blind arrangement for a window, door or the like is characterised that the blind 30 and the window pane 34 together define an insulating space between them, the blind being held to the window frame at least along a major part of its longitudinal marginal portions by being held between a pair of strips 26, 32 of the kind which exert a magnetic force between them. For example, a magnetised strip 26 may be secured to the vertical sides of the window frame, the roller blind 30 may extend across the top of the window, and ferromagnetic strips 32 may be applied to the vertical marginal portions of the blind when it is extended so that these portions are held onto the magnetised strips by magnetic attraction between the strips fixed to the window frame sides 16 and the applied strips 32. <IMAGE>
Patent GB-2037128-A (GB)
Title: Electronic telephone on a chip
IPC: H04M1/60
Filed: 1979-11-01
Abstract: An electronic telephone wherein the functions of maintaining a balanced impedance, detecting the presence of a ring, generating the ring, and sharing a common pair of wires for both transmittal and reception without excessive feedback are electronically synthesized so as to replace electromechanical and other non-electronic components typically employed. Digital switching techniques are employed to perform the hybrid coupler function, thereby eliminating the need for a phase inversion transformer which is otherwise typically used. A totally integrated one chip telephone is thereby provided, wherein low cost switching circuits may be employed as a replacement for all transformers, and both FET and bipolar techniques are utilized so as to enable significant size reduction in capacitors. The electronic telephone may be equipped with a push-button keyboard pad for interconnection of the dialling function to the external common wire pair.
Patent GB-2044793-A (GB)
Title: Recovering hydrocarbons from subterranean deposits
IPC: E21B43/243
Filed: 1980-02-28
Abstract: Injection and recovery conduits are sunk into the coal or oil shale reserve and (a) a metal alkyl and (b) water and/or air are injected separately and then mixed to cause a reaction between (a) and (b) in situ in the reserve whereby the coal or shale oil is combusted and fluidised, the pressure generated by the combustion reaction forcing the fluidised hydrocarbon products up the recovery conduit(s) to the surface.
Patent GB-2049460-A (GB)
Title: Secondary sludge dewatering process
IPC: C02F11/125
Filed: 1980-03-14
Abstract: In a process for mechanically dewatering secondary sewage sludge the sludge is passed into one end of a screw press and heated to at least 60 DEG C within the press or before entry or both. Preferably, a cylindrical substantially unagitated layer of material derived from the sludge is retained within an annular space located between the outer edge of the screw 4 and the inner surface of the porous wall 3. As shown the upper part of the press is heated by a steam jacket 9. <IMAGE>
Patent GB-2050090-A (GB)
Title: Circuit for starting and ballasting arc discharge lamps
IPC: H05B41/38
Filed: 1980-04-11
Abstract: A filament 21 connected in series with the arc lamp 24 provides illumination during arc start-up and functions as a ballast during normal arc operation. An oscillatory starting circuit includes a transformer (37, 38, 71) and a frequency-controlling ringing circuit (46, 38) and applies starting voltage to the arc lamp until an operating are is established. The circuit includes capacitor 43 for isolating the starting transformer from the operating path of the arc lamp, and further includes a voltage-doubling starting circuit (27, 43) and also a "keep- alive" feature 81 which prevents the arc from extinguishing during power fluctuations. <IMAGE>
Patent GB-2058611-A (GB)
Title: Deep drilling machine
IPC: C09J121/00
Filed: 1980-06-11
Abstract: A deep drilling machine including a machine frame (1) and a headstock (3) and a tailstock (24) has a coolant supply means (9) located between the headstock and the tailstock. The headstock and the tailstock are both provided with a feed drive and the coolant supply means is locatable in a substantially fixed position on the machine frame. However, the workpiece receiving device (29) of the coolant supply means is displaceable as desired to either of the two working sides of the coolant supply means. The coolant supply means or its support may be resiliently slidably mounted for limited movement to either side of a vertical plane extending transversely of the machine. <IMAGE>
Patent GB-2057508-A (GB)
Title: Blast compositions in shaft furnaces
IPC: C21B5/00
Filed: 1980-06-20
Abstract: A gaseous fluid having a lower oxygen content than air e.g. nitrogen or combustion vapour, is added to the air constituting the hot blast to a shaft furnace, e.g. an iron blast furnace without hydrocarbon injections, so that a high blast temperature can be maintained.
Patent GB-2078116-A (GB)
Title: Speed pacing aid for swimmers
IPC: A63B69/00
Filed: 1980-06-21
Abstract: The invention provides a portable means of providing the swimmer or swimmers with a visual pre-set datum from which he can judge for himself his pace and position at any point during a training schedule. It provides a controller which can be connected to a flexible transparent tube which houses wires and a number of lamps (say 15) at a fixed pitch along the tube. It provides a power source and a means by which the lamps can be illuminated in a pre-determined manner at a pre-set rate over a specified range. <IMAGE>